rust/tests/ui/associated-consts/associated-const-use-impl-of-same-trait.rs

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//@ run-pass
2015-03-26 19:06:26 +00:00
// The main purpose of this test is to ensure that different impls of the same
// trait can refer to each other without setting off the static recursion check
// (as long as there's no actual recursion).
trait Foo {
const BAR: u32;
}
struct IsFoo1;
impl Foo for IsFoo1 {
const BAR: u32 = 1;
}
struct IsFoo2;
impl Foo for IsFoo2 {
const BAR: u32 = <IsFoo1 as Foo>::BAR;
}
fn main() {
assert_eq!(<IsFoo1>::BAR, <IsFoo2 as Foo>::BAR);
}